In November, we told you about AT&T rolling out Facetime video chat to LTE devices or Mobile Share data plans. Now, customers with tiered data plans can use Facetime on the go, as well. That just leaves customers with grandfathered unlimited data plans out.

If you have a tiered data plan and haven’t been able to use Facetime without needing WiFi, the update is rolling out over the next few weeks, so it may not be available for you just yet. Mark Collins, SVP of Data and Voice for AT&T says:

“We have already begun updating our systems and processes and expect to start rolling the update out to customers on an ongoing basis beginning in the next couple of weeks. Customers do not need to do anything–the update will be applied automatically over the next few months.”

What’s taken AT&T so long to open Facetime Over Cellular to its users? The network. Since Apple announced that iOS 6 would no longer require a WiFi connection for Facetime back in September, AT&T has been hard at work beefing up their network and testing to ensure it didn’t cause problems. Collins explains:

When FaceTime over Cellular launched in September 2012, we explained that we wanted to roll it out gradually to ensure the service had minimal impact on the mobile experience for all of our customers.”

So, if you’re an AT&T customer with an iOS 6 device, look for Facetime calls to be supported without needing WiFi “in the next couple of weeks.”

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